I am unable to share id/pw for admin, but would appreciate any info how I can roll back to the previous version or if you have advice how to patch/fix after you review how the template is acting (link above).

Thank you for the speedy reply! However, it is not clear what you're recommending for me to do. Based upon the installation of the previous version of DWQA the shortcode was already in place. The new version is now causing the question list not to be found. What is the 'little change' you're recommending?